[1970 C10 MJW]

my sick audio is my exhaust note but on a serious note, the previous owner of my truck put 6.5" in my truck doors, i hate them, they sound goo i just hate the look, as far as the headliner systems they look nice but if u want a very clean and crisp sound the speakers that come with those headliners may not be very high end, so idk how u would feel bout it you might turn around and replace those speakers and put pioneer or jbl or something in their place, as far as a sub, i have seen some low profile subs for sale through i think pioneer or jbl, that are meant to go under the seat of a truck.
I have been in the pro-audio area like concert sound systems etc for about 4 years, hobby person with it before and so i prefer the sound to be perfect, so rather then listen to the 6.5" speakers i usually just shut off the radio cuz most 6.5 inch until u get to the high end suck lol. thats my opinion lol
boston acoustic makes very good speakers fyi, just be prepared to open up your wallet